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<div class="header">
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<a href="#pub-methods">Public 成员函数</a> &#124;
<a href="#pri-attribs">Private 属性</a> &#124;
<a href="#friends">友元</a> &#124;
<a href="class_o_n___arc-members.html">所有成员列表</a>  </div>
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<div class="title">ON_Arc类 参考</div>  </div>
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类 ON_Arc 继承关系图:</div>
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  <img src="class_o_n___arc.png" usemap="#ON_5FArc_map" alt=""/>
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Public 成员函数</h2></td></tr>
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&#160;</td><td class="memItemRight" valign="bottom"><b>ON_Arc</b> (const <a class="el" href="class_o_n___circle.html">ON_Circle</a> &amp;circle, double angle_in_radians)</td></tr>
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&#160;</td><td class="memItemRight" valign="bottom"><b>ON_Arc</b> (const <a class="el" href="class_o_n___circle.html">ON_Circle</a> &amp;circle, <a class="el" href="class_o_n___interval.html">ON_Interval</a> angle_interval_in_radians)</td></tr>
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&#160;</td><td class="memItemRight" valign="bottom"><b>ON_Arc</b> (const <a class="el" href="class_o_n___plane.html">ON_Plane</a> &amp;plane, double radius, double angle_in_radians)</td></tr>
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&#160;</td><td class="memItemRight" valign="bottom"><b>ON_Arc</b> (const <a class="el" href="class_o_n__3d_point.html">ON_3dPoint</a> &amp;center, double radius, double angle_in_radians)</td></tr>
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&#160;</td><td class="memItemRight" valign="bottom"><b>ON_Arc</b> (const <a class="el" href="class_o_n___plane.html">ON_Plane</a> &amp;plane, const <a class="el" href="class_o_n__3d_point.html">ON_3dPoint</a> &amp;center, double radius, double angle_in_radians)</td></tr>
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&#160;</td><td class="memItemRight" valign="bottom"><b>ON_Arc</b> (const <a class="el" href="class_o_n__2d_point.html">ON_2dPoint</a> &amp;start_point, const <a class="el" href="class_o_n__2d_point.html">ON_2dPoint</a> &amp;interior_point, const <a class="el" href="class_o_n__2d_point.html">ON_2dPoint</a> &amp;end_point)</td></tr>
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&#160;</td><td class="memItemRight" valign="bottom"><b>ON_Arc</b> (const <a class="el" href="class_o_n__3d_point.html">ON_3dPoint</a> &amp;start_point, const <a class="el" href="class_o_n__3d_point.html">ON_3dPoint</a> &amp;interior_point, const <a class="el" href="class_o_n__3d_point.html">ON_3dPoint</a> &amp;end_point)</td></tr>
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bool&#160;</td><td class="memItemRight" valign="bottom"><b>Create</b> (const <a class="el" href="class_o_n___circle.html">ON_Circle</a> &amp;circle, double angle_in_radians)</td></tr>
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bool&#160;</td><td class="memItemRight" valign="bottom"><b>Create</b> (const <a class="el" href="class_o_n___circle.html">ON_Circle</a> &amp;circle, <a class="el" href="class_o_n___interval.html">ON_Interval</a> angle_interval_in_radians)</td></tr>
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bool&#160;</td><td class="memItemRight" valign="bottom"><b>Create</b> (const <a class="el" href="class_o_n___plane.html">ON_Plane</a> &amp;plane, double radius, double angle_in_radians)</td></tr>
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bool&#160;</td><td class="memItemRight" valign="bottom"><b>Create</b> (const <a class="el" href="class_o_n__3d_point.html">ON_3dPoint</a> &amp;center, double radius, double angle_in_radians)</td></tr>
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bool&#160;</td><td class="memItemRight" valign="bottom"><b>Create</b> (const <a class="el" href="class_o_n___plane.html">ON_Plane</a> &amp;plane, const <a class="el" href="class_o_n__3d_point.html">ON_3dPoint</a> &amp;center, double radius, double angle_in_radians)</td></tr>
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bool&#160;</td><td class="memItemRight" valign="bottom"><b>Create</b> (const <a class="el" href="class_o_n__2d_point.html">ON_2dPoint</a> &amp;start_point, const <a class="el" href="class_o_n__2d_point.html">ON_2dPoint</a> &amp;interior_point, const <a class="el" href="class_o_n__2d_point.html">ON_2dPoint</a> &amp;end_point)</td></tr>
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bool&#160;</td><td class="memItemRight" valign="bottom"><b>Create</b> (const <a class="el" href="class_o_n__3d_point.html">ON_3dPoint</a> &amp;start_point, const <a class="el" href="class_o_n__3d_point.html">ON_3dPoint</a> &amp;interior_point, const <a class="el" href="class_o_n__3d_point.html">ON_3dPoint</a> &amp;end_point)</td></tr>
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bool&#160;</td><td class="memItemRight" valign="bottom"><b>Create</b> (const <a class="el" href="class_o_n__2d_point.html">ON_2dPoint</a> &amp;start_point, const <a class="el" href="class_o_n__2d_vector.html">ON_2dVector</a> &amp;dir_at_start, const <a class="el" href="class_o_n__2d_point.html">ON_2dPoint</a> &amp;end_point)</td></tr>
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bool&#160;</td><td class="memItemRight" valign="bottom"><b>Create</b> (const <a class="el" href="class_o_n__3d_point.html">ON_3dPoint</a> &amp;start_point, const <a class="el" href="class_o_n__3d_vector.html">ON_3dVector</a> &amp;dir_at_start, const <a class="el" href="class_o_n__3d_point.html">ON_3dPoint</a> &amp;end_point)</td></tr>
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<a class="el" href="class_o_n___arc.html">ON_Arc</a> &amp;&#160;</td><td class="memItemRight" valign="bottom"><b>operator=</b> (const <a class="el" href="class_o_n___circle.html">ON_Circle</a> &amp;)</td></tr>
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void&#160;</td><td class="memItemRight" valign="bottom"><b>Dump</b> (<a class="el" href="class_o_n___text_log.html">ON_TextLog</a> &amp;dump) const</td></tr>
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bool&#160;</td><td class="memItemRight" valign="bottom"><b>IsValid</b> () const</td></tr>
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<a class="el" href="class_o_n___bounding_box.html">ON_BoundingBox</a>&#160;</td><td class="memItemRight" valign="bottom"><b>BoundingBox</b> () const</td></tr>
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bool&#160;</td><td class="memItemRight" valign="bottom"><b>GetBoundingBox</b> (<a class="el" href="class_o_n___bounding_box.html">ON_BoundingBox</a> &amp;bbox, int bGrowBox=false) const</td></tr>
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bool&#160;</td><td class="memItemRight" valign="bottom"><b>GetTightBoundingBox</b> (<a class="el" href="class_o_n___bounding_box.html">ON_BoundingBox</a> &amp;tight_bbox, int bGrowBox=false, const <a class="el" href="class_o_n___xform.html">ON_Xform</a> *xform=0) const</td></tr>
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bool&#160;</td><td class="memItemRight" valign="bottom"><b>IsCircle</b> () const</td></tr>
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double&#160;</td><td class="memItemRight" valign="bottom"><b>AngleRadians</b> () const</td></tr>
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double&#160;</td><td class="memItemRight" valign="bottom"><b>AngleDegrees</b> () const</td></tr>
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<a class="el" href="class_o_n___interval.html">ON_Interval</a>&#160;</td><td class="memItemRight" valign="bottom"><b>Domain</b> () const</td></tr>
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<a class="el" href="class_o_n___interval.html">ON_Interval</a>&#160;</td><td class="memItemRight" valign="bottom"><b>DomainRadians</b> () const</td></tr>
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<a class="el" href="class_o_n___interval.html">ON_Interval</a>&#160;</td><td class="memItemRight" valign="bottom"><b>DomainDegrees</b> () const</td></tr>
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bool&#160;</td><td class="memItemRight" valign="bottom"><b>SetAngleRadians</b> (double angle_in_radians)</td></tr>
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bool&#160;</td><td class="memItemRight" valign="bottom"><b>SetAngleIntervalRadians</b> (<a class="el" href="class_o_n___interval.html">ON_Interval</a> angle_in_radians)</td></tr>
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bool&#160;</td><td class="memItemRight" valign="bottom"><b>Trim</b> (<a class="el" href="class_o_n___interval.html">ON_Interval</a> domain_radian)</td></tr>
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bool&#160;</td><td class="memItemRight" valign="bottom"><b>SetAngleDegrees</b> (double angle_in_degrees)</td></tr>
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<a class="el" href="class_o_n__3d_point.html">ON_3dPoint</a>&#160;</td><td class="memItemRight" valign="bottom"><b>StartPoint</b> () const</td></tr>
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<a class="el" href="class_o_n__3d_point.html">ON_3dPoint</a>&#160;</td><td class="memItemRight" valign="bottom"><b>MidPoint</b> () const</td></tr>
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<a class="el" href="class_o_n__3d_point.html">ON_3dPoint</a>&#160;</td><td class="memItemRight" valign="bottom"><b>EndPoint</b> () const</td></tr>
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bool&#160;</td><td class="memItemRight" valign="bottom"><b>ClosestPointTo</b> (const <a class="el" href="class_o_n__3d_point.html">ON_3dPoint</a> &amp;test_point, double *t) const</td></tr>
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<a class="el" href="class_o_n__3d_point.html">ON_3dPoint</a>&#160;</td><td class="memItemRight" valign="bottom"><b>ClosestPointTo</b> (const <a class="el" href="class_o_n__3d_point.html">ON_3dPoint</a> &amp;test_point) const</td></tr>
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double&#160;</td><td class="memItemRight" valign="bottom"><b>Length</b> () const</td></tr>
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double&#160;</td><td class="memItemRight" valign="bottom"><b>SectorArea</b> () const</td></tr>
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<a class="el" href="class_o_n__3d_point.html">ON_3dPoint</a>&#160;</td><td class="memItemRight" valign="bottom"><b>SectorAreaCentroid</b> () const</td></tr>
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double&#160;</td><td class="memItemRight" valign="bottom"><b>SegmentArea</b> () const</td></tr>
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<a class="el" href="class_o_n__3d_point.html">ON_3dPoint</a>&#160;</td><td class="memItemRight" valign="bottom"><b>SegmentAreaCentroid</b> () const</td></tr>
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bool&#160;</td><td class="memItemRight" valign="bottom"><b>Reverse</b> ()</td></tr>
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int&#160;</td><td class="memItemRight" valign="bottom"><b>GetNurbForm</b> (<a class="el" href="class_o_n___nurbs_curve.html">ON_NurbsCurve</a> &amp;nurbs_curve) const</td></tr>
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bool&#160;</td><td class="memItemRight" valign="bottom"><b>GetRadianFromNurbFormParameter</b> (double nurbs_parameter, double *arc_radians_parameter) const</td></tr>
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bool&#160;</td><td class="memItemRight" valign="bottom"><b>GetNurbFormParameterFromRadian</b> (double arc_radians_parameter, double *nurbs_parameter) const</td></tr>
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<tr class="inherit_header pub_methods_class_o_n___circle"><td colspan="2" onclick="javascript:toggleInherit('pub_methods_class_o_n___circle')"><img src="closed.png" alt="-"/>&#160;Public 成员函数 继承自 <a class="el" href="class_o_n___circle.html">ON_Circle</a></td></tr>
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&#160;</td><td class="memItemRight" valign="bottom"><b>ON_Circle</b> (const <a class="el" href="class_o_n___plane.html">ON_Plane</a> &amp;plane, double radius)</td></tr>
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&#160;</td><td class="memItemRight" valign="bottom"><b>ON_Circle</b> (const <a class="el" href="class_o_n__3d_point.html">ON_3dPoint</a> &amp;center, double radius)</td></tr>
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&#160;</td><td class="memItemRight" valign="bottom"><b>ON_Circle</b> (const <a class="el" href="class_o_n___plane.html">ON_Plane</a> &amp;plane, const <a class="el" href="class_o_n__3d_point.html">ON_3dPoint</a> &amp;center, double radius)</td></tr>
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&#160;</td><td class="memItemRight" valign="bottom"><b>ON_Circle</b> (const <a class="el" href="class_o_n__2d_point.html">ON_2dPoint</a> &amp;P, const <a class="el" href="class_o_n__2d_point.html">ON_2dPoint</a> &amp;Q, const <a class="el" href="class_o_n__2d_point.html">ON_2dPoint</a> &amp;R)</td></tr>
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&#160;</td><td class="memItemRight" valign="bottom"><b>ON_Circle</b> (const <a class="el" href="class_o_n__3d_point.html">ON_3dPoint</a> &amp;P, const <a class="el" href="class_o_n__3d_point.html">ON_3dPoint</a> &amp;Q, const <a class="el" href="class_o_n__3d_point.html">ON_3dPoint</a> &amp;R)</td></tr>
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bool&#160;</td><td class="memItemRight" valign="bottom"><b>Create</b> (const <a class="el" href="class_o_n___plane.html">ON_Plane</a> &amp;plane, double radius)</td></tr>
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bool&#160;</td><td class="memItemRight" valign="bottom"><b>Create</b> (const <a class="el" href="class_o_n__3d_point.html">ON_3dPoint</a> &amp;center, double radius)</td></tr>
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bool&#160;</td><td class="memItemRight" valign="bottom"><b>Create</b> (const <a class="el" href="class_o_n___plane.html">ON_Plane</a> &amp;plane, const <a class="el" href="class_o_n__3d_point.html">ON_3dPoint</a> &amp;center, double radius)</td></tr>
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bool&#160;</td><td class="memItemRight" valign="bottom"><b>Create</b> (const <a class="el" href="class_o_n__2d_point.html">ON_2dPoint</a> &amp;P, const <a class="el" href="class_o_n__2d_point.html">ON_2dPoint</a> &amp;Q, const <a class="el" href="class_o_n__2d_point.html">ON_2dPoint</a> &amp;R)</td></tr>
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bool&#160;</td><td class="memItemRight" valign="bottom"><b>Create</b> (const <a class="el" href="class_o_n__3d_point.html">ON_3dPoint</a> &amp;P, const <a class="el" href="class_o_n__3d_point.html">ON_3dPoint</a> &amp;Q, const <a class="el" href="class_o_n__3d_point.html">ON_3dPoint</a> &amp;R)</td></tr>
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bool&#160;</td><td class="memItemRight" valign="bottom"><b>Create</b> (const <a class="el" href="class_o_n__2d_point.html">ON_2dPoint</a> &amp;P, const <a class="el" href="class_o_n__2d_vector.html">ON_2dVector</a> &amp;tangent_at_P, const <a class="el" href="class_o_n__2d_point.html">ON_2dPoint</a> &amp;Q)</td></tr>
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bool&#160;</td><td class="memItemRight" valign="bottom"><b>Create</b> (const <a class="el" href="class_o_n__3d_point.html">ON_3dPoint</a> &amp;P, const <a class="el" href="class_o_n__3d_vector.html">ON_3dVector</a> &amp;tangent_at_P, const <a class="el" href="class_o_n__3d_point.html">ON_3dPoint</a> &amp;Q)</td></tr>
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bool&#160;</td><td class="memItemRight" valign="bottom"><b>IsValid</b> () const</td></tr>
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bool&#160;</td><td class="memItemRight" valign="bottom"><b>IsInPlane</b> (const <a class="el" href="class_o_n___plane.html">ON_Plane</a> &amp;, double=ON_ZERO_TOLERANCE) const</td></tr>
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double&#160;</td><td class="memItemRight" valign="bottom"><b>Radius</b> () const</td></tr>
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double&#160;</td><td class="memItemRight" valign="bottom"><b>Diameter</b> () const</td></tr>
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double&#160;</td><td class="memItemRight" valign="bottom"><b>Circumference</b> () const</td></tr>
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const <a class="el" href="class_o_n__3d_point.html">ON_3dPoint</a> &amp;&#160;</td><td class="memItemRight" valign="bottom"><b>Center</b> () const</td></tr>
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const <a class="el" href="class_o_n__3d_vector.html">ON_3dVector</a> &amp;&#160;</td><td class="memItemRight" valign="bottom"><b>Normal</b> () const</td></tr>
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const <a class="el" href="class_o_n___plane.html">ON_Plane</a> &amp;&#160;</td><td class="memItemRight" valign="bottom"><b>Plane</b> () const</td></tr>
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<a class="el" href="class_o_n___bounding_box.html">ON_BoundingBox</a>&#160;</td><td class="memItemRight" valign="bottom"><b>BoundingBox</b> () const</td></tr>
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bool&#160;</td><td class="memItemRight" valign="bottom"><b>GetTightBoundingBox</b> (<a class="el" href="class_o_n___bounding_box.html">ON_BoundingBox</a> &amp;tight_bbox, int bGrowBox=false, const <a class="el" href="class_o_n___xform.html">ON_Xform</a> *xform=0) const</td></tr>
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bool&#160;</td><td class="memItemRight" valign="bottom"><b>Transform</b> (const <a class="el" href="class_o_n___xform.html">ON_Xform</a> &amp;)</td></tr>
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<a class="el" href="class_o_n__3d_point.html">ON_3dPoint</a>&#160;</td><td class="memItemRight" valign="bottom"><b>PointAt</b> (double) const</td></tr>
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<a class="el" href="class_o_n__3d_vector.html">ON_3dVector</a>&#160;</td><td class="memItemRight" valign="bottom"><b>DerivativeAt</b> (int, double) const</td></tr>
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<a class="el" href="class_o_n__3d_vector.html">ON_3dVector</a>&#160;</td><td class="memItemRight" valign="bottom"><b>TangentAt</b> (double) const</td></tr>
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bool&#160;</td><td class="memItemRight" valign="bottom"><b>ClosestPointTo</b> (const <a class="el" href="class_o_n__3d_point.html">ON_3dPoint</a> &amp;point, double *t) const</td></tr>
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<a class="el" href="class_o_n__3d_point.html">ON_3dPoint</a>&#160;</td><td class="memItemRight" valign="bottom"><b>ClosestPointTo</b> (const <a class="el" href="class_o_n__3d_point.html">ON_3dPoint</a> &amp;point) const</td></tr>
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double&#160;</td><td class="memItemRight" valign="bottom"><b>EquationAt</b> (const <a class="el" href="class_o_n__2d_point.html">ON_2dPoint</a> &amp;plane_point) const</td></tr>
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<a class="el" href="class_o_n__2d_vector.html">ON_2dVector</a>&#160;</td><td class="memItemRight" valign="bottom"><b>GradientAt</b> (const <a class="el" href="class_o_n__2d_point.html">ON_2dPoint</a> &amp;plane_point) const</td></tr>
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bool&#160;</td><td class="memItemRight" valign="bottom"><b>Rotate</b> (double sin_angle, double cos_angle, const <a class="el" href="class_o_n__3d_vector.html">ON_3dVector</a> &amp;axis_of_rotation)</td></tr>
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bool&#160;</td><td class="memItemRight" valign="bottom"><b>Rotate</b> (double angle_in_radians, const <a class="el" href="class_o_n__3d_vector.html">ON_3dVector</a> &amp;axis_of_rotation)</td></tr>
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bool&#160;</td><td class="memItemRight" valign="bottom"><b>Rotate</b> (double sin_angle, double cos_angle, const <a class="el" href="class_o_n__3d_vector.html">ON_3dVector</a> &amp;axis_of_rotation, const <a class="el" href="class_o_n__3d_point.html">ON_3dPoint</a> &amp;center_of_rotation)</td></tr>
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bool&#160;</td><td class="memItemRight" valign="bottom"><b>Rotate</b> (double angle_in_radians, const <a class="el" href="class_o_n__3d_vector.html">ON_3dVector</a> &amp;axis_of_rotation, const <a class="el" href="class_o_n__3d_point.html">ON_3dPoint</a> &amp;center_of_rotation)</td></tr>
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bool&#160;</td><td class="memItemRight" valign="bottom"><b>Translate</b> (const <a class="el" href="class_o_n__3d_vector.html">ON_3dVector</a> &amp;delta)</td></tr>
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bool&#160;</td><td class="memItemRight" valign="bottom"><b>Reverse</b> ()</td></tr>
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int&#160;</td><td class="memItemRight" valign="bottom"><b>GetNurbForm</b> (<a class="el" href="class_o_n___nurbs_curve.html">ON_NurbsCurve</a> &amp;nurbs_curve) const</td></tr>
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bool&#160;</td><td class="memItemRight" valign="bottom"><b>GetRadianFromNurbFormParameter</b> (double nurbs_parameter, double *circle_radians_parameter) const</td></tr>
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bool&#160;</td><td class="memItemRight" valign="bottom"><b>GetNurbFormParameterFromRadian</b> (double circle_radians_parameter, double *nurbs_parameter) const</td></tr>
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Private 属性</h2></td></tr>
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<a class="el" href="class_o_n___interval.html">ON_Interval</a>&#160;</td><td class="memItemRight" valign="bottom"><b>m_angle</b></td></tr>
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<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="friends"></a>
友元</h2></td></tr>
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bool&#160;</td><td class="memItemRight" valign="bottom"><b>ON_BinaryArchive::ReadArc</b> (<a class="el" href="class_o_n___arc.html">ON_Arc</a> &amp;)</td></tr>
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bool&#160;</td><td class="memItemRight" valign="bottom"><b>ON_BinaryArchive::WriteArc</b> (const <a class="el" href="class_o_n___arc.html">ON_Arc</a> &amp;)</td></tr>
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额外继承的成员函数</h2></td></tr>
<tr class="inherit_header pub_attribs_class_o_n___circle"><td colspan="2" onclick="javascript:toggleInherit('pub_attribs_class_o_n___circle')"><img src="closed.png" alt="-"/>&#160;Public 属性 继承自 <a class="el" href="class_o_n___circle.html">ON_Circle</a></td></tr>
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<a class="el" href="class_o_n___plane.html">ON_Plane</a>&#160;</td><td class="memItemRight" valign="bottom"><b>plane</b></td></tr>
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double&#160;</td><td class="memItemRight" valign="bottom"><b>radius</b></td></tr>
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